For the latest updates, and details of different routes, go to www.ratp.fr or call 0800-15-11-11.

Alternatives to public transport

If you don’t live too far from your work, this is the perfect opportunity to burn some calories by riding a bicycle, a scooter or skateboard. Our advice: check the weather report before heading out. You can also choose to share a ride with someone who owns a car and travels in the same direction as you: www.Covoiturage.fr, www.Covoiturage.com, www.123envoiture.fr.

For Parisians, Vélib - the city's rent-a-bicycle-by-the-hour service - will be a precious ally, but it might be hard to find one! (www.velib.paris.fr).